Improvement in deep-well pumps



UNITED STATES JAMES HARRISON, OF JAMESTOVN, NEV YORK.

IMPROVEMENT IN DEEP-WELL PUMPS.

Specification forming part of Letters Patent No. 53,974, dated April 17, 1866.

To alt whom it may concern:

Be it known that I, JAMES HARRISON, of Jamestown, in the county of Chautauqua and State ot' New York, have invented new and useful Improvements in Pumps for Raising Oil and other Liquids from Deep lVells; and Ido hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in whichl Figure l is a longitudinal elevation. Fig. 2 is a longitudinal section, and Fig. 3 detached views of the several parts.

My invention has for its object a remedy for the difficulties which are caused by the presence ot' gas in pumping oil-wells, and it consists mainly in constructing, locating, and

using an anchor-chamber below the foot-valve and below the ingress-openings ot' the pumpbarrel, the anchor being connected with the upper valve by a rod, which passes through the lower or foot valve, so that the anchor working in this chamber will act upon and assist in operating both valves.-

It is not my object to separate the gas from the oil or other liquids in the well,but to provide means by which it maybe easily and successfully pumped with the other liquids or uids without materially hindering or retarding the -normal action of the pump.

Letters of like name and kind indicate like parts in each of the figures.

A represents ordinary well-tubing. B represents the pump-barrel, and C the anchorchamber'. The tubing and the pump-barrel are of ordinary construction, and the anchorehamber has a screw-connection to the lower end of the pump-barrel.

D is the valve-piston rod. E and F represent the valve-piston, which is of common construction.

G represents the lower or foot valve, which is shown open. When closed it rests upon the seat g', which seat is formed on the upper end of the anchor-chamber.

K is, by way of distinction, called an anchor,7 although it works like a piston in the chamber O. It is connected by means ofthe rod H to the upper valve, which rod passes through the lower valve. It also passes through the upper valve and is made fast thereto by means ofV the nut I, so that the anchor and the upper valve musthave simultaneous and equal movements. rIhe lower or foot valve is made ot' considerable depth, as will be noticed by the drawings, in order to give it a supporting-bearing upon the rod H, and there is a packing within it, which may be tightened orloosened at pleasure, it being my object to allow the rod H to work water-tight through this valve and give it sufficient friction on the rod to support its own weight or more.

An open bevel-rin g, R, made of spring-metal, is fitted into an appropriate seatin the pumpbarrel, as shown at r,in order to limitthe upward movement of the valve G. When the valve strikes this ring its upward movement is stopped, but the rod H will continue its movement through it as far as the valve-piston moves. It will be noticed that this ring occupies a position between the lower valve and the valve-piston, and that it limits the upward movement of the lower valve. Now, if at any time it becomes necessary or desirable to remove the whole working apparatus from the well, the anchor may be made to act as a jar upon this ring, so as to release or force it from its seat, so that the valve-piston, ring, lower valve, and anchor may all be drawn out of the well together, and then they may all be put in together, the upper end of the pumpbarrel B being beveled fromwithin outwardly to correspond with the bevel of the ring, so that the downward pressure of the valve-piston will force the ring into its seat again.

L is a cross-bar or bail for connecting the piston-rod to the valve-piston.

S is a hollow screw fitting into the interior of the lower valve to support the packing around the rod H, and s isa tranverse section thereof.

l) is a packing-ring, which is placed in the groove p2 of the valve-piston; and P is also a packing-ring for the lower valve, G, placed around the rod H.

O is a metallic disk with slightly-convex surface, attached to the lower end of the lower valve, and forms the valve-face. It is susceptible of a slight lateral play on the rod, so that it really acts like a ball-valve, and insures a quick and perfect closing of the valve upon its seat; and W is a washer, which may or may not be used.

There is a vertical oriice made in the anchor,

as shown at K. The object of this orifice is to diminish the power of the anchor, and it will do so in proportion to its size by admitting a slight passage of the fluid through it. This may or may not be used.

At c' is represented a small oritice through the bot-tom of the anchor-chamber, to admit the passage of duid through it as the anchor moves up or down.

At B are shown ingress-openings into the pump-barrel to allow the tluids ot the well to pass in. Y represents the dischargenozzle ot' the pump.

In the practical operation of this pump the anchor K, with its rod H, has the eiect to in sure theclosing ofthe lower valve at the proper time, notwithstanding any pressure of gas behind it; and it also has the effect to insure the opening` and closing ofthe upper Valve at the proper time, notwithstanding a heavy pressure of gas in the pump-barrel below it, and thereby the pump is made effective at all times, and the gas is pumped out with the oil or other liquids.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The anchor-chamber C, including the anchor K and rod H, for the purpose and substantially as described.

2. The anchor-chamber, including its anchor and connecting-rod, in combination with the upper and lower valves, substantially as described.

'lhe combination and arrangement ot the check-ring R (fitted into an appropriate seat, r', in the pumpbarrel) with the valve Gr and anchor K, the ring forming a check to the movements ot' the Valve, and, with the anchor, acting as a jar, for the purposes and substantially as described.

JAMES HARRISON.

Witnesses:

JOHN J. KINNEY, S. T. ALLEN. 

